How to check how many token left in VVDI MB BGA Tool

We have customer contact our engineer  asking how many tokens left in Mercedes Benz VVDI MB BGA tool key programmer.
How to check tokens remaining in VVDI MB Tool?
Open VVDI Benz software (current version goes to V2.0.8), Click “Password Calculation” function, the windows will show you how many free calculation and payed calculation left.
Password calculation can get key password through EIS and working key (online)
CAN protocol EIS all support password calculation
Support BGA keys and other NEC keys
Support calculate password for NEC v51, v57 keys. No soldering, safe method.
Data acquisition time depends on the key version. It needs about 3.5 – 13 minutes
BGA version need about 5 minutes, some versions only need 3.5 minutes
Calculate time in server: 30 seconds – 1 minute